Printed Wiring Boards - Sony BM-23MK2 Service Manual

BM-23MK2

6-2. PRINTED WIRING BOARDS

• :Uses unleaded solder.
1 2
A
B
S503
E-INDEX
S501
ON
CUE/REVIEW
S402
OFF
(FF/BACK SPACE)
S102
(POWER)
C
D
S401
(BACK SPACE)
S601
FAST PB
S502
ON
LOCK
E
OFF
F
S501
G TAPE SPEED
2.4cm 4.8cm
• Semiconductor Location
Ref. No. Location Ref. No. Location
D161 D-3 D601 C-2
D501 C-2 D701 D-9
D502 D-2 D702 D-10
D703 D-11
D503 B-6
D504 C-7 D704 D-10
D505 B-2
D506 B-3 IC101 D-6
D507 B-2 IC102 D-6
BM-23MK2
3 4
HRP901-1
AUDIO
IC504
HE901
ERASE
(ICE DESIGNATION)
Ref. No. Location Ref. No. Location Ref. No. Location
IC103 D-7 Q1 D-2 Q104 C-6
IC501 D-7 Q2 E-2 Q105 D-7
IC502 C-6 Q3 D-2 Q106 C-6
IC503 C-8 Q4 D-2 Q107 D-7
IC504 B-3 Q5 D-2 Q109 E-3
IC601 F-7 Q101 C-6 Q110 E-3
IC701 C-10 Q102 C-7 Q111 D-6
Q103 C-6 Q112 D-6
5 6 7
J102 J101
VR101
EAR
MIC
VOLUME
PLUG IN POWER
GRY
FB902
R106
WHT
BLK
HEAD
IC502
S103
MIC SENS
HEAD
S101
DICT
LISTEN
STOP
S504
VOR
IC101
IC103
IC102
DRY BATTERY
SIZE "AA"
2PCS, 3.0V
RV601 RV602
RV601 RV602
CN102
TAPE SPEED TAPE SPEED
DC IN 3V
4.8cm 2.4cm
Ref. No. Location Ref. No. Location Ref. No.
Q161 B-4 Q506 B-2 Q514
Q162 E-6 Q507 C-8 Q515
Q163 D-3 Q508 D-7 Q516
Q501 D-8 Q509 D-7 Q517
Q502 E-7 Q510 D-7 Q518
Q503 C-3 Q511 C-2 Q519
Q504 B-2 Q512 C-2 Q520
Q505 B-2 Q513 D-2 Q521
14 14
8 9
RED
MIC901
BLK MIC
VIO
CON LCD701
(LIQUID CRYSTAL
DICT
DISPLAY)
ON
IC503
OFF
X701
IC501
1-868-270-
BLK
HRP901-2
LETTER
WHT
HEAD
SP501
SPEAKER
BLK (COM)
(COM)
WHT (W) (U)
*
M
M901
RED (V) (V)
MOTOR
IC601
BRW (U) (W)
*M901
Exchange the connection of U and W
in order to connect the motor in reverse direction.
Location Ref. No. Location Ref. No. Location
C-3 Q522 D-3 Q608 D-2
B-3 Q523 B-2 Q610 E-2
B-6 Q601 C-1 Q611 F-6
B-7 Q602 C-2 Q612 C-2
B-7 Q603 D-2 Q613 D-2
B-2 Q605 C-2 Q701 C-9
D-7 Q606 D-2 Q702 C-10
C-3 Q607 E-2 Q703 C-10
11
10
12
GRY
S701
D703
COUNTER
DICT/
RESET
BATT
D704
1-868-270-
Ref. No. Location Ref. No. Location
Q704 B-10 Q712 D-9
Q705 B-10 Q713 D-10
Q706 B-10 Q714 D-9
Q707 C-10 Q715 D-9
Q708 C-10
Q709 B-10
Q710 C-10
Q711 D-9